Airdrop Bitmap Geometry & Specifications

We put a huge amount of work into getting the Bitmap's geometry dialled. A bike that's designed to be ridden as hard as this, and particularly a hardtail, is all about the angles. The whole idea was to produce a bike that's fast and fun; like the bikes we used to ride when we were kids, but with everything we've learned about progressive geometry and the latest standards rolled in. A hardcore hardtail for the modern era.

There are four sizes to choose from, all with super-low standover. You can choose the reach you want and run a 150mm or 170mm dropper to get the desired pedalling position. It's low in the BB too, with a -45mm BB drop... perfect for railing through berms. The rear-end is short at 420mm but it can handle a modern 2.6" tyre with tonnes of mud clearance. Meanwhile at the business end there's a 65° head angle for charging through tech and down the steeps. It's easy to jump and manual, it's roomy enough to go fast but it'll also thread through singletrack at pace.

Size

Small

Medium

Large

X-Large

A

Seat Tube

410

435

460

485

B

Effective Top Tube

585.1

606.4

626.4

646.4

C

Reach

420

440

460

480

D

Stack

616.4

616.5

620.9

625.5

E

Chainstay

420

420

420

420

F

Head Tube

110

115

120

125

G

Head Tube Angle

65°

65°

65°

65°

H

Seat Tube Angle

74°

74°

74°

74°

I

Bottom Bracket Drop

-45

-45

-45

-45

J

Wheelbase

1150.4

1170.3

1192.4

1214.6

K

Fork Length

532

532

532

532

L

Fork Offset

46

46

46

46

All measurements in mm. Based on a 140mm fork.

The Bitmap hardtail frame was designed in Sheffield and developed on trails throughout the UK. As with all our bikes, it's built to be simple but effective. It's also fully up to date, with a Boost 12x148mm rear axle (included), integrated 180mm brake mount, a threaded BB shell and stealth dropper compatibility. We don't cal it a "plus" bike but it has plenty of clearance for 2.6" tyres.

People come in all shapes and sizes, and we all have different preferences. This sizing information is intended to be a guide, and for most people it will be sufficient to make the right choice. But if you would like to discuss sizing or if you have any questions, feel free to contact us.